Duke Ahn, M.D.
NPI 1942318373ActiveIndividual· Orthopaedic Surgery· Los Alamitos, CA
Orthopaedic Surgery (M.D.) in Los Alamitos, California, trained at Northwestern University Feinberg Medical School (class of 1990). 137 Medicare patients in 2024, $55,887 paid; all of their 221 Part D prescriptions were generic. Zimmer Biomet Holdings, Inc. was the largest of 2 companies reporting payments in 2025, $44.91 in all, mostly food and beverage.
Overview
| NPI | 1942318373 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 27, 2006 |
| Last updated in NPPES | Jun 17, 2020 |
| Certified by provider | Jun 17, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | G84554 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 137 |
|---|---|
| Services billed | 625 across 35 procedure codes |
| Paid by Medicare | $55,887 |
Part D prescriptions in 2024
| Prescriptions (claims) | 221 · 223 30-day fills |
|---|---|
| Patients | 93 |
| Total drug cost | $2,995 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Prohealth Partners, A Medical GroupLong Beach, CA · 239 clinicians
Hospital affiliation
- Uci Health-OrangeOrange, CA
Other facilities
- Charity Home Health ServicesHome health agency · Torrance, CA
Industry payments (Open Payments)
- 2025$44.91 · 2 payments from 2 companies
- 2024$61.32 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zimmer Biomet Holdings, Inc. | $25.14 | 1 |
| Saxum Surgical, Inc. | $19.77 | 1 |
What the 2025 payments were for
- Food and Beverage$44.91 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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